Home / 140,001.21-193,205.66-76,342.50

Finding the Fourth Proportional to 140,001.21, 193,205.66 and 76,342.50

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Solution

The fourth proportional to 140,001.21, 193,205.66 and 76,342.50 is: 105,354.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,001.21 : 193,205.66 = 76,342.50 : x
  2. Step 2: Convert to fraction form
    140,001.21/193,205.66 = 76,342.50/x
  3. Step 3: Cross multiply
    140,001.21x = 193,205.66 × 76,342.50
  4. Step 4: Simplify right side
    140,001.21x = 14,749,802,716.84
  5. Step 5: Solve for x
    x = 14,749,802,716.84/140,001.21
  6. Step 6: Final answer
    x = 105,354.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.